Master Your Hobbies and Live Freely! (MYHLF)

In a world where magic has declined and cannot be used without the assistance of magic tools, Philz, the beautiful son of the Duke’s second wife, spends his days enjoying making things. In his previous life, his hobbies included puzzles, plastic models, and programming.
In this life as well, he uses his crafting hobby to invent his own magic tools diligently! Despite being constantly mistreated within the ducal household, he doesn’t mind at all, earning a living as a skilled adventurer while enriching his hobbies.
Then, he is summoned by the gods and given a somewhat troublesome mission: to spread Earth’s knowledge to another world? A radio-controlled clock using magic! Bread making from yeast!
The obsessive boy Philz will revolutionize another world by mastering his hobbies!